CDMA Downlink Receiver Based on PIC Structure
Dacheng Yang · Beijing Youdian Xueyuan xuebao · 2008
Firstly,after analyzing the generation and the distribution of the inherent error of overlap-cut(OC) method frequency domain equalization(FDE),the improved version of OC method called adaptive OC(AOC) method was proposed.Secondly,one parallel interference cancellation(PIC) structure based on non-linear feedback was designed.After nonlinear processing,the users' feedback information during the PIC iteration was adjusted according to confidence.As a result of both analysis and simulation,AOC method FDE outperforms the original OC method with lower complexity.The non-linear feedback PIC further improves the performance of the receiver.